EP1621286B1 - Bohrmaschine, insbesondere Kernlochbohrmaschine - Google Patents

Bohrmaschine, insbesondere Kernlochbohrmaschine Download PDF

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Publication number
EP1621286B1
EP1621286B1 EP05012959.2A EP05012959A EP1621286B1 EP 1621286 B1 EP1621286 B1 EP 1621286B1 EP 05012959 A EP05012959 A EP 05012959A EP 1621286 B1 EP1621286 B1 EP 1621286B1
Authority
EP
European Patent Office
Prior art keywords
intermediate shaft
drive
drilling machine
plunger
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP05012959.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1621286A3 (de
EP1621286A2 (de
Inventor
Jürgen Wiehler
Jörg Bortz
Kurt Schellhammer
Martin Beichter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP1621286A2 publication Critical patent/EP1621286A2/de
Publication of EP1621286A3 publication Critical patent/EP1621286A3/de
Application granted granted Critical
Publication of EP1621286B1 publication Critical patent/EP1621286B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece
    • B25H1/0071—Stands attached to the workpiece by magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/04—Arrangements preventing overload of tools, e.g. restricting load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/36—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/65—Means to drive tool
    • Y10T408/675—Means to drive tool including means to move Tool along tool-axis
    • Y10T408/6771—Means to drive tool including means to move Tool along tool-axis with clutch means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/65—Means to drive tool
    • Y10T408/675—Means to drive tool including means to move Tool along tool-axis
    • Y10T408/6786—Manually moved lever

Definitions

  • the invention relates to a Kernlochbohrmaschine according to the preamble of claim 1 with a stand on which a carriage is guided, which is movable by means of a drive in a working direction along a guide, wherein on the carriage a drilling unit with a spindle driven by a motor for driving a drilling tool is received, wherein the drive with an intermediate shaft can be coupled, via which the carriage is driven, and wherein on the intermediate shaft (38) a plunger (62) is received, the between a first position in which a drive movement of the drive via the plunger is transmitted to the intermediate shaft, and a second position in which no transmission of rotational movement takes place from the drive to the intermediate shaft is axially displaceable.
  • Such a drill is from the US-A-5 035 549 known.
  • This is a Kernlochbohrmaschine in which the intermediate shaft allows for switching between an automatic feed and a manually applied via a lever feed.
  • it is known to repeatedly lower the drill onto a workpiece in order to cut it into a certain depth of cut ( DE 199 04 117 A1 ).
  • core drills with a stepper motor for feed drive are from the JP 2000 094 206 A and the JP 08 108 306 A known.
  • a Magnetfußbohrö known with a frame and a magnetic base which adheres magnetically to a workpiece, with an electric drill with a drill motor and a feed motor in the form of a DC motor, which is added to the frame for advancing the drill on the workpiece and back, wherein a regulator is provided having hole drilling detecting means for detecting completion of the drilling on the workpiece, feed motor reversing means for reversing the direction of movement of the feed motor, as well as having safety circuit means for shutting off the drill motor and the feed motor in case of detecting an overload condition.
  • a drill head At one of the DE 3 708 038 A1 known drilling machine is provided a drill head, a drive motor connected to the drill head for its drive, a power supply device for powering the drive motor and a feed motor in the form of a series motor for moving the drill head with respect to the workpiece.
  • a controller is provided with a measuring means for measuring the current supplied to the drive motor, a memory means for storing an ammeter measured when the drill head is out of engagement with the workpiece, and detecting means with a current one Current reading and the stored current measured value can be detected whether a drilling operation is completed or not.
  • the present invention seeks to provide a Kernlochbohrmaschine indicate, in which avoided by relatively simple means overloading of the drilling unit by a high feed and a simple, fast handling with a good drilling result is possible.
  • the chips produced are broken during drilling of metal and removed from time to time from the core hole bore by the perodic retraction of the carriage against the working direction. In this way, the drilling process is improved and there are problems and dangers avoided by sharp-edged chips.
  • a worm gear is preferably provided, via which the stepping motor can be coupled to the intermediate shaft.
  • the worm gear via the intermediate shaft with a pinion can be coupled, which meshes with a rack provided on the stand.
  • the feed of the stepping motor can be implemented in a suitable manner in a feed of the carriage along the stand.
  • a lever is preferably coupled to the intermediate shaft, which allows a manual rotation of the intermediate shaft.
  • the lever can be designed as a turnstile with three pivotally mounted on the intermediate shaft, offset by 120 ° to each other grip parts whose ends engage one end of the plunger, an axial displacement of the plunger between the first position and the second position by tilting the handle parts to allow.
  • the worm gear on a screw driven by the stepper motor which is in engagement with a worm wheel, which is coupled via roller with the plunger and via this with the intermediate shaft to the rotary drive.
  • a spring-loaded pressure piece is held between the plunger and the intermediate shaft, via which the rolling elements in the first position of the plunger are biased for engagement in driving recesses of the worm wheel.
  • the plunger on a collar over which the rolling elements between the first position for driving the intermediate shaft and the second position in which no entrainment of the intermediate shaft is effected by the drive are displaceable.
  • a spring element for biasing the plunger may be held in the second position between the collar and a stop surface of the intermediate shaft.
  • the drilling unit on a three-speed gearbox for driving the drilling tool is provided.
  • a drilling machine according to the invention is designated overall by the numeral 10.
  • the drilling machine 10 is a core drilling machine with a stand 12, on which a drilling unit 16 is accommodated on a carriage 14, which is movable along a guide 28 by means of a drive 30.
  • the drilling unit 16 has a motor 18 in the form of a universal motor, which drives a spindle 22 for driving a drilling tool 20 via a three-speed gearbox 24.
  • a selector lever 26 is rotatably received on the housing of the drilling unit 16.
  • a rack 34 is received on the carriage 14, which is drivable via a rotatably mounted on the stator 12 pinion 36, as will be described in detail below.
  • the pinion 36 is either driven automatically by a drive 30 by means of a stepping motor 32 or manually by means of a turnstile 46.
  • a plunger 62 is axially slidably coupled to the intermediate shaft 38.
  • the turnstile 46 has three gripping parts 48, which are offset by 120 ° relative to one another and which are arranged pivotably and are coupled in a rotationally fixed manner to the intermediate shaft 38.
  • Out Fig. 2 It can be seen how the grip parts 48, 52 are held with their ends 49 and 53, respectively, on associated carriers 54 by means of pins 56.
  • the ends 49 and 53 of the handle parts 48 and 52 cooperate with an axial end 70 of the plunger 62.
  • tilting one of the handle parts 48, 50, 52 can be so the plunger 62 between a first position and between a second, in Fig. 2 axially shift position shown, as indicated by the double arrow 64.
  • a rotary movement of the turnstile 46 or the individual gripping parts 48, 50, 52 is transmitted to the intermediate shaft 38 and thus converted into a displacement of the drilling unit 16.
  • a feed movement generated by the stepping motor 32 takes place in the first position, however, entrainment of the intermediate shaft 38 when the stepper motor 32 is driven.
  • the stepper motor 32 can be coupled via a worm gear 40 with the intermediate shaft 38.
  • a screw 42 is driven by the stepping motor 32, which is in engagement with a worm wheel 44 which is rotatably mounted on the intermediate shaft 38.
  • 44 driving recesses 76 are provided in the worm wheel, in which rolling bodies 66 can engage in the form of balls in order to produce a positive connection between worm gear 44 and intermediate shaft 38. While the rolling bodies 66 in the in Fig.
  • the rolling bodies 66 can be pressed in the first position of the plunger 62 via a spring-loaded pressure member 78 radially outward until they are separated from the Mit varietiesweriana 76 of the worm wheel 44 for positive engagement with the intermediate shaft 38 are taken. If the plunger 62 is thus in the first position, a rotational movement performed by the stepping motor 32, which is transmitted to the worm wheel 44, is converted into a rotational movement of the intermediate shaft 38. In this case, the turnstile 46 also rotates during the drive by the stepper motor 32.
  • the intermediate shaft 38 can be rotated manually only with the aid of the turnstile 46 so as to allow manual adjustment of the drilling unit 16, ie in particular manual feed to a workpiece to be drilled. Subsequently, by pivoting one of the handle parts 48, 50, 52 of the plunger 62 is moved to the first position until the rollers 66 are biased by the thrust piece 78 in the driving recesses 76 and they can reach, so the intermediate shaft 38 and thus the pinion 36th take.
  • the designed as a stepper motor 32 drive for the automatic feed of the drilling unit 16 allows automatic feed of the drilling unit 16 without an overload is possible.
  • Fig. 2 Furthermore, it can still be seen how the plunger 62 is rotatably mounted by means of an intermediate part 72 via two bearings 58, 60 on a housing part 74, which is fixed to the stator 12 and is connected to the stepping motor 32.
  • a modified embodiment of the drill is partially in the 3 and 4 represented and designated overall by 10a.
  • the same reference numerals are used for corresponding parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Control Of Cutting Processes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP05012959.2A 2004-07-02 2005-06-16 Bohrmaschine, insbesondere Kernlochbohrmaschine Expired - Fee Related EP1621286B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004033361A DE102004033361A1 (de) 2004-07-02 2004-07-02 Bohrmaschine, insbesondere Kernlochbohrmaschine

Publications (3)

Publication Number Publication Date
EP1621286A2 EP1621286A2 (de) 2006-02-01
EP1621286A3 EP1621286A3 (de) 2009-11-04
EP1621286B1 true EP1621286B1 (de) 2018-07-25

Family

ID=35045021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012959.2A Expired - Fee Related EP1621286B1 (de) 2004-07-02 2005-06-16 Bohrmaschine, insbesondere Kernlochbohrmaschine

Country Status (5)

Country Link
US (1) US7520702B2 (ja)
EP (1) EP1621286B1 (ja)
JP (1) JP5019499B2 (ja)
CN (1) CN1721109B (ja)
DE (1) DE102004033361A1 (ja)

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US8376667B2 (en) * 2007-07-27 2013-02-19 Milwaukee Electric Tool Corporation AC/DC magnetic drill press
DE102008035308A1 (de) 2008-07-23 2010-01-28 C. & E. Fein Gmbh Bohrmaschine, insbesondere Kernlochbohrmaschine, sowie Verfahren zum Steuern einer solchen
US8733612B2 (en) * 2009-08-17 2014-05-27 Covidien Lp Safety method for powered surgical instruments
US8888417B2 (en) * 2010-04-16 2014-11-18 Husqvarna Ab Drilling device with a controller for the feeding unit
DE102010030227A1 (de) * 2010-06-17 2011-12-22 Hilti Aktiengesellschaft Vorrichtung zur Führung eines Werkzeuggerätes
DE102010062709A1 (de) * 2010-12-09 2012-06-14 Hilti Aktiengesellschaft Vorrichtung zur Führung eines Werkzeuggerätes
CN102019452B (zh) * 2010-12-25 2012-05-23 石家庄常山纺织股份有限公司 一种万向钻台
CN102248194A (zh) * 2011-06-16 2011-11-23 林顺胜 一种钻床
US20130287508A1 (en) 2012-04-25 2013-10-31 Milwaukee Electric Tool Corporation Magnetic drill press
DE102012221711A1 (de) 2012-11-28 2014-05-28 Hilti Aktiengesellschaft Gerätesystem mit einer Schaltvorrichtung zum Schalten zwischen einer motorischen und einer manuellen Vorschubeinrichtung
DE102012221706A1 (de) 2012-11-28 2014-05-28 Hilti Aktiengesellschaft Gerätesystem mit einer Schaltvorrichtung zum Schalten zwischen einer motorischen und einer manuellen Vorschubeinrichtung
DE102012221704A1 (de) 2012-11-28 2014-05-28 Hilti Aktiengesellschaft Gerätesystem mit einer Schaltvorrichtung zum Schalten zwischen einer motorischen und einer manuellen Vorschubeinrichtung
CN103157820B (zh) * 2013-03-29 2016-12-28 福建省海洋阀门科技有限公司 手自动钻孔机
CN104213840B (zh) * 2013-05-31 2016-02-03 浙江欣兴工具有限公司 新型钻机
TWI549792B (zh) * 2014-10-16 2016-09-21 Gison Machinery Co Ltd Pneumatic machinery
DE102015105288A1 (de) * 2015-04-08 2016-10-13 C. & E. Fein Gmbh Bohrmaschine, insbesondere Kernbohrmaschine
CN105436933A (zh) * 2015-12-16 2016-03-30 无锡福镁轻合金科技有限公司 一种钻机
CN105598729A (zh) * 2016-02-02 2016-05-25 宁波市国冠自动化技术有限公司 一种电动螺丝刀钻孔定位装置
DE102019112999A1 (de) * 2019-05-16 2020-11-19 C. & E. Fein Gmbh Verfahren zum Betreiben einer Kernbohrmaschine sowie Kernbohrmaschine und Kernbohrkrone zur Durchführung des Verfahrens
EP3944917A1 (de) 2020-07-29 2022-02-02 Hilti Aktiengesellschaft Gerätesystem und verfahren zur ermittlung einer tiefe einer bohrung, die mit dem gerätesystem erzeugt wird
EP4151380A4 (en) * 2021-08-02 2023-12-20 Egun Co., Ltd. TWO HOLE CORE DRILLING MACHINE
KR102347538B1 (ko) * 2021-08-02 2022-01-05 주식회사 이건 다중 천공 코어드릴 장치
KR102360421B1 (ko) * 2021-08-02 2022-02-09 주식회사 이건 2구 천공 코어드릴 장치

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Also Published As

Publication number Publication date
EP1621286A3 (de) 2009-11-04
CN1721109A (zh) 2006-01-18
CN1721109B (zh) 2011-02-02
JP2006015479A (ja) 2006-01-19
JP5019499B2 (ja) 2012-09-05
EP1621286A2 (de) 2006-02-01
DE102004033361A1 (de) 2006-01-19
US7520702B2 (en) 2009-04-21
US20060013663A1 (en) 2006-01-19

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